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Carrier channel selection method in MF-TDMA satellite system

A technology of MF-TDMA and carrier channel, which is applied in the field of wireless resource management of space-based mobile communication system, can solve the problem of low resource utilization rate, achieve the effect of improving utilization rate, high flexibility, and guaranteeing success probability

Inactive Publication Date: 2009-01-14
BEIHANG UNIV
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Problems solved by technology

[0012] Aiming at the problem of carrier channel selection in time slot resource allocation in the MF-TDMA satellite system, the present invention provides an adjustable carrier channel selection method to solve the user's carrier channel selection problem and reduce the problem caused by unbalanced carrier channel load. The problem of low resource utilization

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  • Carrier channel selection method in MF-TDMA satellite system
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  • Carrier channel selection method in MF-TDMA satellite system

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Embodiment Construction

[0039] A carrier channel selection method in an MF-TDMA satellite system of the present invention will be described in detail below with reference to the accompanying drawings.

[0040] When managing the carrier channel, the resource manager mainly maintains two structures, namely the user structure and the carrier channel management structure. In the user structure, the reserved carrier channel information of the user and the specific resource occupation of all connections are saved. In the management structure, the current occupancy of the current carrier channel and the list of users in the carrier channel are maintained.

[0041] The present invention grasps the load situation of the current carrier channel in real time by means of statistics of the connection request to the user and the user to the carrier channel. The load function is used as the criterion for carrier channel selection.

[0042] The load condition of a carrier channel can be evaluated by the carrier cha...

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Abstract

The invention discloses a carrier channel selection method for MF-TDMA satellite system. there are two conditions for channel selection and allocation in the method by judging if terminal A is first time for starting a time slot resource application. Condition 1: if terminal A is first time for starting time slot resource application and has not prearrange carrier channel, then finding the smallest carrier channel for allocation by finding idle carrier channel and computing present carrier channel load function; condition 2: if terminal A is not first time for starting time slot resource application and a foregoing connection is allocated to predetermined carrier channel, then predetermined carrier channel is target carrier channel for allocation, or all connection of terminal A is tuned to other usable carrier channel for allocation. The inventive method makes user carrier channel tunable, solves time slot resource waste problem arising from uneven load of carrier channel for multi-user multi-connection and promotes time slot resource utilization.

Description

technical field [0001] The invention belongs to the field of aerospace information, and in particular relates to a method for selecting and reserving carrier channels in wireless resource management of MF-TDMA communication satellites in the field of aerospace information, especially a method suitable for realizing multi-users (including ground users or A space-based mobile communication system radio resource management method for multi-service communication of aviation aircraft. Background technique [0002] Space-based mobile communication system is a kind of wireless communication system based on satellite network, using various types of satellites in different orbits as network access nodes to realize mutual communication between mobile users or between mobile users and fixed users . The communication system has independent information acquisition, storage, processing and distribution capabilities on the satellite, and can be interconnected with land, sea, and space-bas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/185H04Q7/20
Inventor 张军张涛董启甲
Owner BEIHANG UNIV
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